3 years ago

Pls pls pls pls pls help

Physics

1 answer:

Rzqust [24]3 years ago

8 0

Answer:

what grade are you in so i can help

Explanation:

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The fundamental frequency of a standing wave on a 1.0-m-long string is 440 Hz. What would be the wave speed of a pulse moving al

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Answer: v = 880m/s

Explanation: The length of a string is related to the wavelength of sound passing through the string at the fundamental frequency is given as

L = λ/2 where L = length of string and λ = wavelength.

But L = 1m

1 = λ/2

λ = 2m.

But the frequency at fundamental is 440Hz and

V = fλ

Hence

v = 440 * 2

v = 880m/s

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3 years ago

Which part of this model represents a layer made of liquid rock that produces

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Explanation: The outer core is a thick layer of molten rock that encircles the inner core.

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3 years ago

Un objeto de 0.5kg de masa se desplaza a lo largo de una trayectoria rectilínea con aceleración constante de 0.3m/s2. Si partió

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Answer:

p = 1.2 kg-m/s

Explanation:

The question is, "An object of mass 0.5kg is moving along a rectilinear path with constant acceleration of 0.3m / s2. If it started from rest and the magnitude of its momentum in kg * m / s after 8s is".

Mass of the object, m = 0.5 kg

Acceleration of the object, a = 0.3 m/s²

We need to find the momentum after 8 seconds.

We know that,

$p=F\times t$

i.e.

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So,

$p=0.5\times 0.3\times 8\\\\p=1.2\ kg-m/s$

So, the momentum of the object is 1.2 kg-m/s.

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2 years ago

Explain the difference between a scalar and a vector.

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A scalar is a quantity having magnitude and direction , and a vector is an object having magnitude and direction

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3 years ago

Part A

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The relation between intensity and distance is given by:

I=Pd2
I
=
P
d
2
I=
d
2

P

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3 years ago